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Show MIMICRY IN NATURE. How Birds and Insects Protect Them-selves Them-selves from Notice and Attack. An ofllclul of the National museum , at Washington, who has mado many trips nbroad in tho Interest of that In-stltutlon, In-stltutlon, states that In South Anicrl-can Anicrl-can forests the butterflies and the birds aro equally brilliant In tholt colors, but that tho buttorfllos belug weaker, fall a prey to the birds'. One vifcy brlght-hued species of butterfly however, is not disturbed by tho birds H on account of the disagrecabla odor that it emits. Singularly onough, mjj somo other groups of butterflies, which 9r resemble In color tho specloB Just do- HQ scribed, also escapo persecution by the j&y birds, although they emit no odor. It ifff is evident that tho similarity ot color jtjjg deceives tho birds, and thus serves as mm a shield for the butterflies. This sort t of mimicry of color and form, which m-w nuturallBts call "protective resomb- iMl lance," Is not vory uncommon among Mjk Insects. w Another form of "protective resem- wlJ blnnco" which exhibits much rontrlv- vi'H nnco nnd skill Is sometimes found g-T5 among birds. Somo birds hhlo tholi pj'i eggs among stones that resemble the ftji. eggs In form nnd color. The little flM "bottlo tit" In Kiuiund weaves a hot- . 8 Ho shaped nest out of moss, lichens fji! and spiders' wobs, nnd when placed fr? In a treo or bush tho nest so closely f jw; resembles its surroundings that it can jjfll hardly bu dotected, Tho color and S appearance of tho nest nro Imitations . 'H ot tho prevailing color and appear- nnco of tho particular treo In which it is placed. H |